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Reassessing Europa's Surface Roughness

Steinbrügge, Gregor and Voigt, Joana and Schroeder, D.M. and Stark, Alexander and Haynes, M.S. and Scanlan, Kirk M. and Hamilton, Christopher W. and Young, Duncan and Hussmann, Hauke and Grima, C. and Blankenship, D.D. (2019) Reassessing Europa's Surface Roughness. EPSC-DPS Joint Meeting 2019, 15.-20. Sept. 2019, Genf, Schweiz.

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Official URL: https://meetingorganizer.copernicus.org/EPSC-DPS2019/EPSC-DPS2019-865-2.pdf


We re-evaluated the surface roughness of Europa at scales between 30 m and 5 km using stereo-pair images collected by the Solid State Imager (SSI) aboard the Galileo mission with a resolution between 9 m and 255 m per pixel. These images have been adjusted relative to each other to obtain consistent mosaics used for geomorphological mapping. Overall we have a set of nine regions covered by stereo images. The roughness is derived for different geologic terrains which have been distinguished by geomorphological mapping and analyzed separately. For each facies studied, we report the structure function, the breakpoints, and the respective power laws parameterized in terms of Hurst exponents. We also discuss the implications for laser and radar performance as well as for a potential lander.

Item URL in elib:https://elib.dlr.de/132294/
Document Type:Conference or Workshop Item (Speech)
Title:Reassessing Europa's Surface Roughness
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Steinbrügge, GregorInstitute for Geophysics, University of Texas at Austin, USAUNSPECIFIED
Voigt, JoanaLunar and Planetary Laboratory, University of Arizona, AZ, USAUNSPECIFIED
Schroeder, D.M.Department of Geophysics, Stanford University, Stanford, CA, USAUNSPECIFIED
Stark, Alexanderalexander.stark (at) dlr.dehttps://orcid.org/0000-0001-9110-1138
Haynes, M.S.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Scanlan, Kirk M.Institute for Geophysics, University of Texas at Austin, USAUNSPECIFIED
Hamilton, Christopher W.University of Arizona Lunar and Planetary Laboratory Tucson Arizona USAUNSPECIFIED
Young, DuncanInstitute for Geophysics, University of Texas at Austin, Austin, TX, USAUNSPECIFIED
Hussmann, HaukeHauke.Hussmann (at) dlr.deUNSPECIFIED
Grima, C.Institute for Geophysics, University of Texas at Austin, Austin, TX, USAUNSPECIFIED
Blankenship, D.D.Institute for Geophysics, University of Texas at Austin, Austin, TX, USAUNSPECIFIED
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 865
Series Name:Geophysical Research Abstracts
Keywords:Europa, DTM, Surface Roughness, Ice, GALA, REASON, JUICE, Europa Clipper
Event Title:EPSC-DPS Joint Meeting 2019
Event Location:Genf, Schweiz
Event Type:international Conference
Event Dates:15.-20. Sept. 2019
Organizer:Europlanet Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):Project JUICE JANUS and GALA
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geodesy
Deposited By: Stark, Alexander
Deposited On:09 Dec 2019 11:28
Last Modified:09 Dec 2019 11:28

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